Clinical Trials Search (ClinicalTrials.gov, official API)
Pricing
from $1.28 / 1,000 studies
Clinical Trials Search (ClinicalTrials.gov, official API)
Search clinical trials by condition, drug/intervention, sponsor, status, phase, location and dates from ClinicalTrials.gov's official API: NCT id, title, status, phase, enrollment, sponsor and collaborators, conditions, interventions, start/completion dates, eligibility, trial sites by city/country
Pricing
from $1.28 / 1,000 studies
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Larkmoor Data
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Search clinical trials by condition, drug/intervention, sponsor, status, phase, location and dates from ClinicalTrials.gov's official API: NCT id, title, status, phase, enrollment, sponsor and collaborators, conditions, interventions, start/completion dates, eligibility, trial sites by city/country and central contacts with phone and email. For pharma and biotech business development, CROs, site networks, investors, patient advocates and researchers. No API key.
What you can use it for
- Pharma/biotech business development and competitive intelligence: who is running Phase 3 trials in your indication, with sponsors and sites
- CROs, site networks and labs: recruiting trials by country or city, with the sponsor's contact
- Investors and analysts: pipeline tracking by sponsor, phase and dates (run on a schedule, diff by nctId)
- Patient advocates and clinicians: recruiting trials for a condition near a location
Why this one
- Official ClinicalTrials.gov API v2, the registry of record for 500k+ studies worldwide; no key, no scraping
- Every search dimension the site offers: condition, intervention, sponsor, free text, location, title, status, phase, updated/started since, sort
- Rich rows: phase, enrollment, design, conditions, interventions, sponsor and collaborators, all dates, eligibility, up to 50 sites with status, countries, central contacts with phone and email, summary and link
- Pay only for results: $1.50 per 1,000 studies. No subscription.
Input
- Condition or disease (
condition) - Intervention / drug (
intervention) - Sponsor / collaborator (
sponsor) - Other terms (
keywords) - Location (city, state or country) (
location) - Title contains (
title) - Status (
statuses) Default:["RECRUITING"]. - Phases (
phases) - Updated since (YYYY-MM-DD) (
updatedSince) - Started since (YYYY-MM-DD) (
startedSince) - Sort (
sort) Default:"LastUpdatePostDate:desc". - Max studies (
maxResults) Default:1000.
Output
One row per study in the dataset (JSON, CSV, Excel, or through the API). Sample:
Tips
- Statuses and phases use the registry's codes (RECRUITING, COMPLETED...; PHASE1, PHASE2, PHASE3, PHASE4, NA).
- Leave statuses empty to include completed and terminated trials.
Integrations and API
Run it on a schedule, trigger it from the API or a webhook, and send results to Google Sheets, Zapier, Make, Slack, a database or your own code with the platform's standard integrations.
Data and fair use
This tool reads only public sources (official APIs, public feeds or pages the publisher makes available to everyone) and respects robots.txt and rate limits. You are responsible for using the data in line with the source's terms and applicable law.
How much it costs
You pay per result (pay-per-event), nothing per month and nothing when a run returns nothing. The price is $1.50 per 1,000 studies on the Free plan, with automatic discounts on paid plans (Bronze −5%, Silver −10%, Gold −15%, Platinum −20%).
Worked examples:
- 100 studies → $0.15
- 1,000 studies → $1.50
- 10,000 studies → $15.00
- Plus $0.001 per run start.
Platform usage (compute, storage) is included in the price: the actor runs at a small memory setting by default, so a typical run of 1,000 studies finishes in well under a minute.
FAQ
Where does the data come from?
ClinicalTrials.gov's official v2 API (US National Library of Medicine). Sites, sponsors and contacts are the ones the sponsor registered publicly.
Why are some fields empty?
A field is null when the source does not publish it for that row. The output keeps every column so your spreadsheet or integration always sees the same shape.
Can I run it on a schedule?
Yes. Use Apify Schedules (daily, hourly, cron) and connect the run to Make, Zapier, n8n, Google Sheets, a webhook or the API. Each run writes a dataset you can download as JSON, CSV or Excel.
Is there a free trial?
The Apify Free plan includes $5 of monthly platform credit, enough to try this actor on a few hundred results at no cost. There is no subscription for the actor itself.
Can an AI agent use this?
Yes. The actor is available through Apify's MCP server and the API, so LLM agents (Claude, ChatGPT, LangChain, CrewAI) can call it as a tool with the same input.
What happens if something fails?
Runs log every skipped item with a reason. If the source is down, the actor stops cleanly and you are only charged for the results it returned.
Changelog
- 2026-10-18 — Lower price with Bronze/Silver/Gold discounts; smaller default memory (cheaper runs); clean table view of results; FAQ and cost examples; first release.
Support
Found a problem or need a field added? Open an issue on the Issues tab; it is read and answered.
